20g high Stocking question

[B-Chrono]

I have a 20g high tank with the following.

5 Albino cory
6 Neon Tetra
6 Black neon tetras
1 Bolivian Ram
2 Madagascar Rainbow fish

I know the first 4 species will be fine in my tank size but my question is about the Madagascar rainbows as they get decent size( they are both around 2 inches right now). One of my friends had to relocate due to his job so I volunteered to take them on as he had them housed with similar fish, but in a larger tank. Everything seems fine so far, but it has only been about a week. My question is should I try to find a larger tank now (I'm planning on upgrading next summer anyway), or do you think they will be fine in my 20g for the time being. I consulted my local fish store and he seems to think the tank will be fine as long as I keep up with routine water changes and cleanings. I also checked advisor and I am only at 118 percent stocking with these guys in there so I should be able to handle it and my filtration is rated for a 40 gallon tank so no issues there.

Thanks.

 

[bgmann12]

Just do large water changes to stay on top of the waste and upgrade when you can


20 long freshwater
40 breeder reef in the making

 

[sinibotia]

118% isn't all that bad. If the fish have enough space and you are removing more nitrate than is being put in, then you're not overstocked.

 

[B-Chrono]

Thanks for the input but I think I am going to see if the lfs they were purchased from will take them back, they are chasing some of my smaller tetras around the tank and I can tell it is just adding unnecessary stress to the tank.